Fast environmentally benign toilet deodorizer

ABSTRACT

The present invention provides a fast environmentally benign toilet deodorizer, which primarily users a small venting facility to suck in toilet odor, with various methods applied at a suction side of the small venting facility; with a pipe connecting a discharge side of the small venting facility with a mini-bubble generator below the liquid level of a water tank, odor will become mini odor bubbles; and with tank water absorbing primary ingredients of odor in the mini odor bubbles, toilet odor can be removed quickly and in an environmentally benign way, without using aromatics or deodorant.

BACKGROUND OF THE INVENTION

a) Field of the Invention

The present invention relates to a fast environmentally benign toiletdeodorizer, and more particularly to a deodorizer which primarily uses asmall venting facility to suck in toilet odor, with various methodsapplied at a suction side of the small venting facility, and with a pipeconnecting a discharge side of the small venting facility with amini-bubble generator below the liquid level of a water tank. When thesmall venting facility starts up, the odor sucked in will be transformedinto mini bubbles via the mini-bubble generator, followed by the tankwater to absorb primary ingredients of odor in the mini bubbles, so thatthe toilet odor can be quickly removed, and the tank water that absorbsthe primary ingredients of odor will no longer form odor, due to theextremely low concentration of odor ingredients, and thus can be reusedto flush the toilet, thereby quickly removing the toilet odor in anenvironmentally benign fashion, without using aromatics or deodorant.

b) Description of the Prior Art

In daily life, general public shares the same experience in using atoilet where odor generated from fart or excreta 1 will be spreading inan entire bathroom (as shown in FIG. 1), thereby causing uncomfortablefeeling to the next user when he or she smells the odor upon enteringthe bathroom. Conventional approach to remove the odor generated from abathroom toilet includes:

(1) dropping deodorant liquid into a toilet bowl 5;

(2) spraying vaporous deodorant; and

(3) using aromatics.

For the aforementioned approach (1), it primarily uses the features oflow density and insolvability of deodorant liquid to isolate excretawith air, thereby preventing odor from spreading. However, for fart anduncovered excreta 1, it cannot prevent odor 2 from spreading. As forspraying vaporous deodorant, due to that the liquid sprayed containsorganic solvent, it is not environmentally benign to mankind andenvironment.

In addition, the odor generated from using a toilet can be processedwith a small venting facility 6 to suck in odor 2. This kind of methodhas been granted US patents, including:

(1) suction with overflow pipe (U.S. Pat. No. 6,694,634); and

(2) suction with porous ventilation exhaust line below a toilet seat(U.S. Pat. No. 6,637,040, U.S. Pat. No. 6,629,319).

For the aforementioned method of using a small venting facility 6 tosuck in odor 2, aromatics or deodorant is used as a toilet deodorizer 3,at a rear part of discharge side of the small venting facility. However,for aromatics and liquid deodorant, there exists problems with highprice, as well as organic solvent and allergy to scent, whereas forsolid deodorant (e.g., activated carbon), problems exist in high price,unknown saturation condition of adsorption, and being inconvenient touse.

Accordingly, the present invention primarily uses tank water 4 as adeodorant, which has low price, low cost of operation, easiness ofoperation, and is without problem with organic solvent. Moreover, whentoilet bowl 5 is flushed with the tank water 4 that absorbs primaryingredients of odor, it will be replenished with fresh waterautomatically. In addition, absorbent is always below the saturationpoint, therefore, there is no problem with frequent replacement of soliddeodorant, thereby facilitating the convenience of usage.

SUMMARY OF THE INVENTION

The present invention provides a fast environmentally benign toiletdeodorizer, which primarily users a small venting facility 6 to suck intoilet odor 2, with various methods (e.g., overflow pipe 8, porousventilation exhaust line 10 below a toilet seat 9) applied at a suctionside of the small venting facility, and with a pipe 7 connecting adischarge side of the small venting facility with a mini-bubblegenerator 11 below the liquid level of a water tank 14. When the smallventing facility 6 starts up, the odor 2 sucked in will be transformedinto mini bubbles 12 via the mini-bubble generator 11, followed by thetank water 4 to absorb primary ingredients of odor in the mini bubbles12, so that the toiled odor can be quickly removed, and the tank water 4that absorbs the ingredients of odor will no longer form odor, due tothe extremely low concentration of the ingredients of odor, and thus canbe reused to flush the toilet, thereby quickly removing the toilet odorin an environmentally benign fashion, without using aromatics ordeodorant.

To enable a further understanding of the said objectives and thetechnological methods of the invention herein, the brief description ofthe drawings below is followed by the detailed description of thepreferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a schematic view of spreading toilet odor caused by aconventional venting facility.

FIG. 2 shows a schematic view of deodorizing process using porousventilation exhaust line below a toilet seat, and a small ventingfacility located outside a water tank, of the present invention.

FIG. 3 shows a schematic view of deodorizing process using porousventilation exhaust line below a toilet seat, and a small ventingfacility located inside a water tank, of the present invention.

FIG. 4 shows a schematic view of deodorizing process using an overflowpipe, and a small venting facility located inside a water tank, of thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention primarily uses tank water 4 as a toilet deodorantto remove toilet odor, resulting from the high solubility of primaryingredients H₂S, NH₃, etc. of odor 2, generated from fart or excreta 1in using a bathroom.

Referring to FIG. 2 (arrows indicating the flow path of odor), when asmall venting facility starts up without flushing a toilet, toilet odor2 will be sucked in via a porous ventilation exhaust line 10 below atoilet seat 9, to prevent odor from spreading. After expelled throughthe small venting facility 6, odor 2 will pass through a pipe 7, then acheck device 13 (such as a check valve that can prevent tank water 4from flowing back to the small venting facility), and finally enter amini-bubble generator 11 (e.g., air stone, etc.) below liquid level of awater tank 14. Through the mini-bubble generator 11, odor 2 will becomemini odor bubbles 12. Due to the small volume and high solubility of theingredients of odor in these mini odor bubbles 12, the mass transferrate of the ingredients of odor relative to the tank water 4 will beincreased, so that the smell of odor 2 can be quickly removed. On theother hand, gas deodorized via the tank water 4 will first enter the toppart of water tank 14, then be expelled out of the water tank 14 via ahole or gap 16 between the water tank 14 and a tank lid 15. Moreover, asthe concentration of ingredients of odor of the tank water 4 thatabsorbs the ingredients of odor is extremely low, smell of odor will nolonger be formed; therefore the tank water 4 can be reused to flush atoilet bowl 5.

Accordingly, upon flushing a toilet, odor 2 can be sucked in with orwithout activating a small venting facility. The operation will be thesame as normal toilet flushing when not activating the small ventingfacility 6, whereas, upon activating the small venting facility 6, astank water 4 flushed into a toilet bowl 5 contains mini bubbles 17, theperturbation of flushing bowl wall 18 with the tank water 4 can beincreased, thereby enhancing the effect of flushing.

Accordingly, after flushing a toilet, a water tank can be replenishedwith or without activating a small venting facility 6. The operationwill be the same as normal replenish of water tank when not activatingthe small venting facility, whereas, upon activating the small ventingfacility 6, not only a small amount of smell of residual odor 2 in thetoilet can be continuously removed, but also the mini-bubble generator11 can be automatically cleaned up.

Moreover, as shown in FIG. 3 (arrows indicating the flow path of odor),a small venting facility 6 can be located outside and inside a watertank 14.

Accordingly, as shown in FIG. 4 (arrows indicating the flow path ofodor), when using an overflow pipe 8 to suck in toilet odor, a smallventing facility can also be located inside a water tank.

Accordingly, when using tank water 4, the problem with processing toiletodor 2 and flushing excreta 1 in a toilet bowl 5 can be solved, entirelywithout aromatics or deodorant, to remove toilet odor quickly and in anenvironmentally benign fashion.

To emphasize the advancement and practicability of the presentinvention, a comparison with a conventional implementation is providedas follow:

Shortcomings of a conventional implementation

The use of deodorizing liquid has no deodorizing capability foruncovered excreta and fart.

The use of vaporous deodorant is not environmentally benign, becausesome deodorant contains solvent.

The price of aromatics and liquid deodorant is high, and there existsproblem with organic solvent and allergy to scent.

Solid deodorant (e.g., activated carbon) is expensive, and thesaturation condition of adsorption is unknown, thereby causinginconvenience of usage.

ADVANTAGES OF THE PRESENT INVENTION

There is no problem with organic solvent.

It is more convenient to use.

There is no secondary contamination.

The cost of deodorizing is cheap.

There is no problem with allergy to scent.

The efficiency and speed of deodorizing is high.

It has advancement.

It has practicability.

It is of course to be understood that the embodiments described hereinis merely illustrative of the principles of the invention and that awide variety of modifications thereto may be effected by persons skilledin the art without departing from the spirit and scope of the inventionas set forth in the following claims.

1. A fast environmentally benign toilet deodorizer comprising a smallventing facility to suck in toilet odor with various methods applied ata suction side of the small venting facility, and with a pipe connectinga discharge side of the small venting facility with a mini-bubblegenerator below the liquid level of a water tank.
 2. The fastenvironmentally benign toilet deodorizer according to claim 1, wherein acheck device can be installed on a pipe between a discharge side of thesmall venting facility and the mini-bubble generator.
 3. The fastenvironmentally benign toilet deodorizer according to claim 1, whereinvarious methods including a conventional technique (e.g., porousventilation exhaust line installed below a toilet seat, or using anoverflow pipe for sucking) or new technique in which a small ventingfacility is used to suck in toilet odor, can be applied at a suctionside of the small venting facility to suck in toilet odor.
 4. The fastenvironmentally benign toilet deodorizer according to claim 1, whereinthe mini-bubble generator can be an air stone. The fast environmentallybenign toilet deodorizer according to claim 1, wherein the small ventingfacility can be installed inside or outside the water tank.